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Vaillant VRT-PZA Manual

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B Istruzioni d’installazione – 9 Allacciamento elettrico
(Fig. 8, 9)
IMPORTANTE: i cavi a bassa tensione che colleg-
ano il termostato alla caldaia devono necessariamente
passare in canaline prive di tensione a 220 Volt, onde
evitare fenomeni induttivi che potrebbero danneggiare
l’apprecchiatura in modo irreparabile.
Allacciamento alla Tecnoblock
Attenzione:
Il termostato ambiente VRT-PZA deve essere collegato
ai morsetti a bassa tensione 7, 8, 9 di una caldaia
Vaillant Tecnoblock. L’allacciamento elettrico deve
essere effettuato da un tecnico qualificato ed in
possesso dei requisiti tecnicoprofessionali secondo
L. 46/90. Effettuare il cablaggio di allacciamento ai
morsetti 7, 8, 9 sulla caldaia Tecnoblock Vaillant VC...
o VCW... come da fig. 9. Far passare il cavo
d’allacciamento attraverso il passacavo (11).
Dopo l’allacciamento alla morsettiera (12),
mettere il termostato ambiente sulla piastra di montag-
gio in modo che le lamelle (fig. 10, 12b) siano
innestate nei contatti (12a). Reinserire il termostato
ambiente sulla apposita piastra di montaggio.
Portare l’interruttore principale della Tecnoblock su
„1“.
… 90 …


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